000			00384nam a2200133Ia 4500
008			240913s9999||||xx |||||||||||||| ||und||
082			_a628 KAM/E
100			_aBy a kamala and d l Kanth Rao
245		0	_aEnvironmental engineering : water supply, sanitary engineering and pollution
250			_aNULL
260			_bTata McGraw Hill _aNew Delhi _c1988
300			_a270p
942			_cBKS
999			_c3234 _d3234